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4 years ago

Is it possible for a nitrogen atom to change into an oxygen atom? If so, how?

Physics

1 answer:

Sliva [168]4 years ago

8 0

Answer:

The nitrogen atom of an amine may be contained in a ring, a common feature of Nitrogen or oxygen atoms are the most common targets for protein methylation.

Explanation:

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Determine the amount of time for polonium-210 to decay to one fourth its original quantity. The half-life of polonium-210 is 138

ira [324]

Answer: 276 days

Explanation:

This problem can be solved using the Radioactive Half Life Formula:

$A=A_{o}.2^{\frac{-t}{h}}$ (1)

Where:

$A=\frac{1}{4}A_{o}$ is the final amount of the material

$A_{o}$ is the initial amount of the material

$t$ is the time elapsed

$h=138 days$ is the half life of polonium-210

Knowing this, let's substitute the values and find $t$ from (1):

$\frac{1}{4}A_{o}=A_{o}2^{\frac{-t}{138 days}}$ (2)

$\frac{A_{o}}{4A_{o}}=2^{\frac{-t}{138 days}}$ (3)

$\frac{1}{4}=2^{\frac{-t}{138 days}}$ (4)

Applying natural logarithm in both sides:

$ln(\frac{1}{4})=ln(2^{\frac{-t}{138 days}})$ (5)

$-1.386=-\frac{t}{138days}ln(2)$ (6)

Clearing $t$ :

$t=276days$ (7)

7 0

3 years ago

Which of the following clocks is the most precise

UNO [17]

Answer:

Digital clock is the most precised one

Explanation:

3 0

3 years ago

An electromagnet is created using a battery, an insulated copper wire and an iron nail. The wire is wrapped around the nail 20 t

Komok [63]

The strength of the electromagnet will be increased with increase in the voltage of the battery and increase in the number of turns of the coil.

Answer: Option C

Explanation:

An electromagnet is generated by passing current through a magnetic material. As per Faraday’s law, magnetic field will be maintained till there is presence of electric flux in the circuit. Thus, like a solenoid, the number of turns of the copper wire on the iron nail will be directly proportional to the strength of the electromagnet.

This is because each turn of the copper wire will act a small region of electromagnet which when added up will lead to increase in the strength of the electromagnet. Similarly, the electromagnet's strength will also increase when the current flowing in the solenoid is increased.

As the current flow in a circuit is proportional to the battery's voltage used, the increase in the voltage will lead to increase in the flow of current in the solenoid structure. Thus, the increase in voltage as well as the coil's turn number leads to increase in the electromagnet's strength.

7 0

3 years ago

Read 2 more answers

Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el

julia-pushkina [17]

The solution as per the attached photo.

4 0

4 years ago

How many different elements are present in C6H12O6 ? How do you know

mestny [16]

3 elements
C6H12O6 contains 3 elements: carbon, hydrogen, and oxygen.

6 0

3 years ago